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TL1451A-EP Arkusz danych(PDF) 4 Page - Texas Instruments |
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TL1451A-EP Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 25 page www.ti.com Undervoltage Lockout Section Electrical Characteristics Short-Circuit Protection Control Section Electrical Characteristics Oscillator Section Electrical Characteristics TL1451A-EP DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS SLVS614 – DECEMBER 2005 over recommended operating free-air temperature range, V CC = 6 V, f = 200 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT TA = 25°C 2.72 Upper threshold voltage (VCC) TA = 125°C 1.7 V TA = MIN 3.15 TA = 25°C 2.6 Lower threshold voltage (VCC) TA = 125°C 1.65 V TA = MIN 3.09 TA = 25°C 80 120 Hysteresis (VCC) TA = 125°C 10 50 mV TA = MIN 10 60 TA = 25°C 1.5 Reset threshold voltage (VCC) TA = 125°C 0.95 V TA = MIN 1.5 (1) All typical values are at TA = 25°C, unless otherwise indicated. over recommended operating free-air temperature range, V CC = 6 V, f = 200 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT TA = 25°C 650 700 750 Input threshold voltage (SCP) TA = 125°C 400 478 650 mV TA = MIN 800 880 950 Standby voltage (SCP) 140 185 230 mV TA = 25°C 60 120 Latched input voltage (SCP) TA = 125°C 70 120 mV TA = MIN 60 120 Equivalent timing resistance 170 k Ω Comparator threshold voltage (FEEDBACK) 1.18 V (1) All typical values are at TA = 25°C, unless otherwise indicated. over recommended operating free-air temperature range, V CC = 6 V, f = 200 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT TA = 25°C 200 CT = 330 pF, Frequency TA = 125°C 195 kHz RT = 10 kΩ TA = MIN 193 Standard deviation of frequency CT = 330 pF, RT = 10 kΩ 2% TA = 25°C 1% Frequency change with voltage VCC = 3.6 V to 40 V TA = 125°C 1% TA = MIN 3% Frequency change with temperature 1.37% ±10%(2) (1) All typical values are at TA = 25°C, unless otherwise indicated. (2) These parameters are not production tested. 4 |
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